1. The first computer mouse was invented by Doug Engelbart in around 1964 and was made of wood. 2. Bill Gates' house was designed using a Macintosh computer. 3. As a teenager, Obama took drugs including marijuana and cocaine 4.Your brain is 80% water. 5.. No matter how cold it gets, gasoline will not freeze. 6. The average human body contains enough fat to make seven bars of soap.